玉兰属植物资源分类及新品种选育研究

项目组通过承担中国林业科学研究院基金课题“提高辛夷产量综合培育技术研究”、国家林业局948项目“木兰科优良品种及无性繁殖技术引进”等科研任务，对世界玉兰属植物资源、分类及新品种选育进行了深入系统的研究。通过分析探讨木兰科植物进化脉络，提出玉兰属与木兰属为趋同进化的不同分类群，中国是玉兰属植物的起源和分布中心等新的理论观点。发表玉兰属植物1新组、4新组合组，20新组合种，1新组合杂种，确立了玉兰属。调查收集玉兰属植物资源，发现、命名、发表我国玉兰属植物8新种和3新变种。测定分析玉兰属植物遗传参数，建立辛夷产量选择指数，提出辛夷良种指标 测定辛夷挥发油成分及其含率，报道了5种新成分及其应用。以形态特征为主，选育并发表玉兰属植物33个新品种 通过对比测试，选育5个优良品种，其中4个观赏良种，1个药用和香料良种 引进国外8个优良品种，筛选2个观赏良种。项目特点：研究领域涉及植物系统学、植物化学、林木遗传育种学、森林培育学和植物综合开发利用等多学科领域，研究内容全面、深入，具有新理论、新观点和新发现，建立了新系统。发表一批玉兰属植物新种、新变种，选育一批玉兰属植物新品种和优良品种，这些新资源具有重要的科学价值和应用价值。应用推广情况：项目组确立的玉兰属被2008年出版的权威巨著《The Flora of China》（VII）（中国植物志 英文版，第7卷）等采用，发表的新组合中，有13新组合种、1新组合杂种被收录 此前，项目组发表的我国玉兰属植物3新种：青皮玉兰、奇叶玉兰和鸡公玉兰也被该专著收录。项目组建立了玉兰属植物种质资源库和采穗圃25亩，苗木繁育基地50亩，繁育推广苗木308万株，取得了显著的经济效益和社会效益。

The research team conducted in-depth and systematic studies on the germplasm resources, taxonomy, and new variety breeding of Yulania (Magnoliaceae) worldwide by undertaking research projects including the Chinese Academy of Forestry (CAF) funded project "Research on Integrated Cultivation Technologies for Improving Xinyi Yield" and the State Forestry Administration 948 Project "Introduction of Excellent Magnoliaceae Varieties and Asexual Propagation Technologies".

By analyzing and exploring the evolutionary lineage of Magnoliaceae, the team proposed new theoretical viewpoints, including that Yulania and Magnolia are distinct taxa with convergent evolution, and that China is the origin and distribution center of Yulania. The team published 1 new section, 4 new sectional combinations, 20 new species combinations, and 1 new hybrid combination of Yulania, and formally established the genus Yulania.

Through investigation and collection of global Yulania germplasm resources, the team discovered, named, and published 8 new species and 3 new varieties of Yulania in China. The team measured and analyzed genetic parameters of Yulania, established a selection index for Xinyi yield, and proposed criteria for excellent Xinyi varieties. It also determined the volatile oil components and their contents in Xinyi, and reported 5 new components and their applications.

Based mainly on morphological characteristics, the team bred and published 33 new varieties of Yulania. Through comparative tests, 5 excellent varieties were selected, including 4 ornamental excellent varieties and 1 medicinal and aromatic excellent variety. In addition, 8 foreign excellent varieties were introduced, and 2 ornamental excellent varieties were screened out.

Project Characteristics: The research covers multiple disciplines including plant systematics, phytochemistry, forest tree genetic breeding, silviculture, and comprehensive development and utilization of plants. The research content is comprehensive and in-depth, with new theories, viewpoints, discoveries, and a newly established classification system. The team published a number of new species and varieties of Yulania, and bred a number of new and excellent Yulania varieties. These new resources have important scientific and application values.

Application and Promotion: The genus Yulania established by the team has been adopted by authoritative monographs such as *Flora of China* (Vol. 7, English edition, published in 2008). Among the published new combinations, 13 new species combinations and 1 new hybrid combination have been included. Previously, the 3 new Yulania species published by the team in China: Qingpi Yulan, Qiye Yulan, and Jigong Yulan, were also included in this monograph.

The team established a 25-mu germplasm resource bank and scion orchard for Yulania, a 50-mu seedling propagation base, and propagated and promoted 3.08 million seedlings, achieving significant economic and social benefits.

搜集汇总

背景与挑战

背景概述

该数据集总结了'玉兰属植物资源分类及新品种选育研究'项目，这是一个多学科综合研究，系统探讨了玉兰属植物的资源分类、进化理论和新品种选育。研究提出了玉兰属与木兰属趋同进化的新观点，并发表和选育了多个新种、变种及品种，成果被权威植物志收录。项目建立了种质资源库和繁育基地，推广苗木超过300万株，具有显著的科学价值和应用效益。